ACCLIMATION OF PHOTOSYNTHESIS AND GROWTH OF BANANA (<i>MUSA</i> SP.) TO NATURAL SHADE IN THE HUMID TROPICS

Senevirathna, A. M. W. K.; Rodrigo, V. H. L.

doi:10.1017/s0014479708006364

Cited by 11 publications

(4 citation statements)

References 13 publications

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“…On the other hand, the increase in planting densities influenced higher transpiration rates and a decrease in incident radiation inside the cultivation system, making the WUE and photosynthetic processes less effective, conditions that negatively affected bunch filling and manifested the lowest BM observed in the higher densities. Senevirathna et al (2008) stated that net CO 2 assimilation rates generally decrease with low radiation, but that the specific area of the leaf and the ratio of the leaf area increase proportionally with decreasing energy levels from the sun, while the chlorophyll a/b ratio decreases, reflecting greater efficiency in the use of light under shady conditions. On the contrary, Siles et al (2013) and Rocha et al (2017) argued that exposure to full radiation in banana crops increases yield but clarified that net photosynthesis curves vary and other biochemical parameters of photosynthesis are affected by shading and temperature conditions of the leaf.…”

Section: Correlation Between the Variables Of Gas Exchange And Productionmentioning

confidence: 99%

Estimation of physiological parameters on high density plantations and population arrangements of Musa AAA Simmonds

Barrera

Cartagena-Valenzuela

Nanclares-Gómez

2020

Rev. Colomb. Cienc. Hortic.

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In Uraba, Antioquia (Colombia), there is a shortage of first-semester fruits and a surplus of second-semester fruits as a result of low or high precipitation, respectively, affecting the value of production. An experiment was established during 2015-2016 in an area representative of the region in order to determine the field distribution and plantation density that maximize the agronomic potential of Musa AAA Simmonds cv. Williams. The population arrangement treatments (rectangle, triangle and double row), planting densities (2,000; 2,500, 3,000 and 3,500 plants/ha) and one control (1,700 plants/ha in a triangle) were evaluated in a complete, random block design with three repetitions. In the phenological phases of floral differentiation, flowering and harvest, the gas exchange was quantified with measurements of the photosynthesis rate, internal CO2 concentration, stomatal conductance, transpiration, vapor pressure deficit, and water use efficiency. The leaf temperature, quantum photosynthesis efficiency and efficient use of radiation were also considered. The yield components and fruit quality were estimated with fruit mass, number of hands, number of fruits, length of the last hand and degree of the second and last hand. The results showed that the density 2,500 plants/ha, distributed in a triangle or double row, promoted the best use of the climate elements associated with photosynthetic activity under the environmental conditions of Uraba, Antioquia.

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Section: Correlation Between the Variables Of Gas Exchange And Productionmentioning

confidence: 99%

Estimation of physiological parameters on high density plantations and population arrangements of Musa AAA Simmonds

Barrera

Cartagena-Valenzuela

Nanclares-Gómez

2020

Rev. Colomb. Cienc. Hortic.

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“…The results are in accordance with the findings of Batugal et al (1977) on abaca (variety Tinawagang puti) where improved growth and yield were recorded in 66% light. Torquebiau and Akeampong (1994) and Senevirathna et al (2008) studying edible banana (Musa x paradisiaca) under different irradiance documented the highest biomass and yield at 50% light. Meanwhile, Söndahl et al (2005) recommended that overhead shade in arabica coffee (Coffea arabica) should not exceed 50% of total irradiance to attain optimum yield.…”

Section: Discussionmentioning

confidence: 95%

Nutrient Uptake and Fiber Yield of Abaca (Musa textilis var. Laylay) as Affected by Shade, Irrigation and Fertilizer Application

Bande

Grenz

Asio

et al. 2012

ATR

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Abaca, being a shallow rooted plant and a gross feeder, is able to exploit a limited zone soil. Hence, a careful evaluation of its nutrient uptake is needed, particularly under reduced light condition, irrigation, and NPK fertilization. These field trials were performed to investigate the effect of different shade conditions, irrigation, and fertilizer application on NPK plant uptake and fiber yield of abaca. Light infiltration was reduced by 30%, 40%, and 50% of full sunlight using polypropylene shade nets. Irrigation was applied at a rate of 5 liters plant” application” day”. Placement application of N, P2O5 , K2O using complete fertilizer was done at 14 grams plant-1 quarter-1 for the first six months and was increased to 40 grams plant-1 quarter-1 for the next six months after planting. Results showed that shade (p ≤ 0.01) and irrigation- fertilization (p ≤ 0.05) significantly influenced NPK plant uptake, root and leaf uptake rates of abaca from seedling stage until flagleaf stage. The amount of NPK absorbed was proportional to the amount of growth made as influenced by shade and irrigation- fertilization at different stages of plant growth. The abaca grown in 0% shade was negatively affected by high radiation causing photoinhibition and photooxidative damage of the crop at seedling and early vegetative stages that significantly affected NPK uptake rates and fiber yield. The combination of irrigation and fertilization could further enhance fiber yield to as much as 41% but this was not enough to offset the effects of shade on the growth performance and NPK plant uptake of abaca which significantly (p < 0.01) increased fiber yield to as much as 165%.

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“…However, at the end of the day, Yield was higher in plants measured in September than those measured in March. Senevirathna et al (2008) suggest that chlorophyll fluorescence indicates short-term, dynamic photoinhibition under high light conditions, and this could be related to the low light environment during measurements (~200 µmol m -2 s -1 ), which was much lower than for plants in the field. Also, CO 2 uptake was higher in March than in September during most of the day (Fig.…”

Section: Physiological Measurements In the Greenhousementioning

confidence: 91%

Untitled

2021

Int. J. Curr. Res. Biosci. Plant Biol.

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In vitro studies of plant-pathogen interactions using leaf-fragments remains controversial compared to those studies under field conditions. The leaf-fragments technique, which predominantly uses benzimidazole in the culture medium to retard senescence, has been reported as reliable, fast, and inexpensive for analysis of aggressiveness and resistance in the Mycosphaerella fijiensis-Musa spp. interaction. However, no data have been published verifying whether in vitro banana leaf fragments maintain photosynthetic activity, which is a requirement for studying this interaction. In this study, maximum quantum efficiency of photosystem II, electron transport rate, transpiration, carbon dioxide exchange, light saturation point, and stomatal density were evaluated in in vitro leaf fragments of the Grand Nain banana genotype. Furthermore, the same parameters were also attained for leaves from plants in the field (during two seasons) and greenhouse conditions. The photosynthetic yield was constant during the experiment in leaf fragments with benzimidazole, and the photosynthetic rates on day 30 were similar throughout the whole experiment. This study supports that the banana-leaffragment technique as such protects the photosynthetic apparatus and then is suitable for studies on interactions such as that of M. fijiensis-Musa acuminata.

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ACCLIMATION OF PHOTOSYNTHESIS AND GROWTH OF BANANA (MUSA SP.) TO NATURAL SHADE IN THE HUMID TROPICS

Abstract: Growth and photosynthetic performance of banana (Musa sp.) grown in three levels of natural shade (33,

Cited by 11 publications

References 13 publications

Estimation of physiological parameters on high density plantations and population arrangements of Musa AAA Simmonds

Estimation of physiological parameters on high density plantations and population arrangements of Musa AAA Simmonds

Nutrient Uptake and Fiber Yield of Abaca (Musa textilis var. Laylay) as Affected by Shade, Irrigation and Fertilizer Application

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